import turtle

# 初始化画笔
pen = turtle.Turtle()
pen.speed(1)
pen.pensize(3)
pen.color("red")

# 开始作画
pen.left(360)
pen.forward(80)

pen.left(270)
pen.forward(80)

pen.left(270)
pen.forward(80)

pen.left(180)
pen.forward(80)

pen.left(270)
pen.forward(80)

pen.left(270)
pen.forward(80)

turtle.done()